[go: up one dir, main page]

CA2436492A1 - Systeme et procede de realisation de techniques d'evaluation sur de billes ou bois d'oeuvre - Google Patents

Systeme et procede de realisation de techniques d'evaluation sur de billes ou bois d'oeuvre Download PDF

Info

Publication number
CA2436492A1
CA2436492A1 CA002436492A CA2436492A CA2436492A1 CA 2436492 A1 CA2436492 A1 CA 2436492A1 CA 002436492 A CA002436492 A CA 002436492A CA 2436492 A CA2436492 A CA 2436492A CA 2436492 A1 CA2436492 A1 CA 2436492A1
Authority
CA
Canada
Prior art keywords
moe
timber
set forth
measured
calculating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002436492A
Other languages
English (en)
Inventor
Xiping Wang
Robert J. Ross
James A. Mattson
John Erickson
John W. Forsman
Earl A. Geske
Michael A. Wehr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Michigan Technological University
US Department of Agriculture USDA
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2436492A1 publication Critical patent/CA2436492A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/46—Wood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0005—Repeated or cyclic
    • G01N2203/0007—Low frequencies up to 100 Hz
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0023—Bending
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058—Kind of property studied
    • G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0075—Strain-stress relations or elastic constants
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0238—Wood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02827—Elastic parameters, strength or force
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0421—Longitudinal waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0422—Shear waves, transverse waves, horizontally polarised waves

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Wood Science & Technology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Debugging And Monitoring (AREA)

Abstract

L'invention porte sur un système et sur un procédé d'évaluation d'une bille. Le système comprend un module d'analyse comportant au moins un terminal d'entrée pouvant se raccorder à au moins un dispositif d'entrée. Le terminal d'entrée est apte à recevoir au moins un signal représentant au moins une propriété mesurée de la bille et au moins un paramètre déterminé de la bille en réaction à une énergie appliquée sur la bille. Le module d'analyse comprend également un processeur couplé à au moins un terminal d'entrée. Le processeur détermine un module d'élasticité prédictif de la bille en fonction, en partie, de la propriété mesurée et du paramètre détecté. Le module d'analyse comprend également un terminal de sortie couplé au processeur et pouvant se raccorder à un dispositif de sortie. Le terminal de sortie émet un troisième signal représentant le module d'élasticité prédictif.
CA002436492A 2001-01-31 2002-01-30 Systeme et procede de realisation de techniques d'evaluation sur de billes ou bois d'oeuvre Abandoned CA2436492A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US26525201P 2001-01-31 2001-01-31
US60/265,252 2001-01-31
PCT/US2002/002690 WO2002060662A2 (fr) 2001-01-31 2002-01-30 Systeme et procede de realisation de techniques d'evaluation sur de billes ou bois d'oeuvre

Publications (1)

Publication Number Publication Date
CA2436492A1 true CA2436492A1 (fr) 2002-08-08

Family

ID=23009669

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002436492A Abandoned CA2436492A1 (fr) 2001-01-31 2002-01-30 Systeme et procede de realisation de techniques d'evaluation sur de billes ou bois d'oeuvre

Country Status (6)

Country Link
US (2) US7043990B2 (fr)
EP (1) EP1384192A4 (fr)
AU (1) AU2002242023B2 (fr)
CA (1) CA2436492A1 (fr)
NZ (1) NZ527569A (fr)
WO (1) WO2002060662A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111879626A (zh) * 2020-07-31 2020-11-03 广西交科集团有限公司 桥梁橡胶支座实际刚度静力测试方法

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002060662A2 (fr) * 2001-01-31 2002-08-08 Board Of Control Of Michigan Technological University Systeme et procede de realisation de techniques d'evaluation sur de billes ou bois d'oeuvre
US7066007B2 (en) * 2003-10-17 2006-06-27 Eyerhaeuser Company Systems and methods for predicting the bending stiffness of wood products
CA2554170C (fr) 2004-01-22 2011-03-15 Regents Of The University Of Minnesota Procede et dispositif destines a l'evaluation d'un arbre debout
WO2005104258A1 (fr) * 2004-04-27 2005-11-03 Ngk Insulators, Ltd. Procede d’inspection de corps élastique, dispositif d’inspection, et programme de prediction des dimensions
NZ545247A (en) * 2005-02-11 2007-05-31 Waratah Nz Ltd Method and apparatus for assessing or predicting the characteristics of wood
US7340958B2 (en) * 2005-06-28 2008-03-11 Weyerhaeuser Company Methods for determining potential characteristics of a specimen based on stress wave velocity measurements
US7266461B2 (en) * 2005-12-19 2007-09-04 Weyerhaeuser Co. Methods for adjusting stress wave velocity-based predictions of lumber stiffness and warp propensity of a timber-based raw material group
US20070144663A1 (en) * 2005-12-23 2007-06-28 Huber Engineered Woods L.L.C. Process for manufacture of oriented strand lumber products
US8662121B2 (en) * 2006-03-30 2014-03-04 Weyerhaeuser Nr Company Method for reducing warp potential within lumber derived from a raw material
US7938156B2 (en) * 2006-04-20 2011-05-10 Weyerhaeuser Nr Company Method for optimizing lumber
US7603912B2 (en) * 2006-06-14 2009-10-20 Weyerhaeuser Nr Company Method for determining span lengths based on properties of lumber
US7676953B2 (en) 2006-12-29 2010-03-16 Signature Control Systems, Inc. Calibration and metering methods for wood kiln moisture measurement
US8496034B2 (en) * 2007-03-27 2013-07-30 Weyerhaeuser Nr Company Methods for predicting warp at a given condition
US20080295602A1 (en) * 2007-06-01 2008-12-04 Gavin Wallace Method and System for Sorting Green Lumber
US7974803B2 (en) * 2008-04-29 2011-07-05 Metriguard Inc Method and apparatus for calibrating wood testing machine
US8793010B2 (en) * 2010-04-29 2014-07-29 Weyerhaeser NR Company Method for reducing overall variability of moisture content in wood products
CN102520069B (zh) * 2011-12-29 2013-05-15 云南航天工程物探检测股份有限公司 波纹管注浆质量检测方法
US9383341B2 (en) * 2013-10-29 2016-07-05 Metriguard Inc. Sonic lumber tester
CN106650266A (zh) * 2016-12-28 2017-05-10 广西大学 一种饲料配方多媒体教学装置及方法
JP6908411B2 (ja) * 2017-03-31 2021-07-28 日鉄建材株式会社 金属管柱の曲げ試験装置及び方法
US10612995B2 (en) 2017-07-12 2020-04-07 Duke Energy Corporation Nondestructive inspection tools for timber distribution poles, and related methods
CN107702980A (zh) * 2017-11-08 2018-02-16 昆明理工大学 弹性模量、抗弯刚度多功能组合实验装置

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE353958B (fr) * 1967-04-19 1973-02-19 Asea Ab
CA918286A (en) * 1968-09-13 1973-01-02 Washington State University Research Foundation Non-destructive method of grading wood materials
US5024091A (en) * 1986-03-25 1991-06-18 Washington State University Research Foundation, Inc. Non-destructive evaluation of structural members
US4838085A (en) 1986-03-25 1989-06-13 Washington State University Research Foundation, Inc. Methods and appartaus for non-destructing evaluation of the mechanical properties of composite materials
US4852029A (en) * 1987-06-17 1989-07-25 Accu-Tech Incorporated Automated material classification apparatus and method
US4805679A (en) * 1988-01-25 1989-02-21 Integrated Wood Research Inc. Apparatus and method for processing lumber
CA1322282C (fr) 1989-09-29 1993-09-21 Wing-Cheong Lau Methode non destructrice de controle de la qualite de panneaux de bois manufactures et appareil correspondant
US5307679A (en) 1992-03-25 1994-05-03 The United States Of America As Represented By The Secretary Of Agriculture Method and apparatus for evaluating the drying properties of un-dried wood
US5396799A (en) 1992-07-13 1995-03-14 The United States Of America As Represented By The Secretary Of Agriculture Method and apparatus for in situ evaluation of wooden members
DE9315506U1 (de) * 1993-10-13 1993-12-02 Fagus-Grecon Greten Gmbh & Co Kg, 31061 Alfeld Vorrichtung zur maschinellen Festigkeitssortierung von Schnittholz
SE511602C2 (sv) * 1996-06-17 1999-10-25 Dynalyse Ab Förfarande jämte anordning för oförstörande klassificering av företrädesvis långsträckta och/eller skivformade objekt
JP2987498B2 (ja) * 1997-08-12 1999-12-06 鹿児島県 丸太の等級区分装置
US6026689A (en) * 1998-02-25 2000-02-22 Weyerhaeuser Company Log cutting optimization system
US6029522A (en) 1998-02-26 2000-02-29 Perceptron, Inc. Ultrasonic apparatus for characterizing wooden members
JP2000105228A (ja) * 1998-07-31 2000-04-11 Nkk Corp 原木の強度測定装置およびこの装置を利用した原木流通センター設備
NZ333434A (en) * 1998-12-17 1999-10-28 Carter Holt Harvey Ltd Determining log length by passing ultrasonic signal through log, and using length information to determining cut positions
NZ337015A (en) 1999-07-30 2002-07-26 Carter Holt Harvey Ltd Measuring density of logs by striking log end and analysing resultant echos
WO2002060662A2 (fr) * 2001-01-31 2002-08-08 Board Of Control Of Michigan Technological University Systeme et procede de realisation de techniques d'evaluation sur de billes ou bois d'oeuvre
US7066007B2 (en) * 2003-10-17 2006-06-27 Eyerhaeuser Company Systems and methods for predicting the bending stiffness of wood products

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111879626A (zh) * 2020-07-31 2020-11-03 广西交科集团有限公司 桥梁橡胶支座实际刚度静力测试方法
CN111879626B (zh) * 2020-07-31 2022-05-31 广西交科集团有限公司 桥梁橡胶支座实际刚度静力测试方法

Also Published As

Publication number Publication date
US7043990B2 (en) 2006-05-16
EP1384192A2 (fr) 2004-01-28
NZ527569A (en) 2005-11-25
US20040083076A1 (en) 2004-04-29
US20060185441A1 (en) 2006-08-24
WO2002060662A2 (fr) 2002-08-08
EP1384192A4 (fr) 2005-08-03
AU2002242023B2 (en) 2008-01-03
WO2002060662A3 (fr) 2003-04-17

Similar Documents

Publication Publication Date Title
US7043990B2 (en) System for and method of performing evaluation techniques on a log or round timber
AU2002242023A1 (en) System for and method of performing evaluation techniques on a log or round timber
Wang et al. Nondestructive evaluation techniques for assessing modulus of elasticity and stiffness of small-diameter logs
Hein et al. Comparison between three-point and four-point flexural tests to determine wood strength of Eucalyptus specimens
Lindström et al. Methods for measuring stiffness of young trees
Wang et al. Nondestructive evaluation of standing trees with a stress wave method
Wang et al. Strength and stiffness assessment of standing trees using a nondestructive stress wave technique
Wang et al. Several nondestructive evaluation techniques for assessing stiffness and MOE of small-diameter logs
Ross et al. Stress wave nondestructive evaluation of Douglas-fir peeler cores
Alves et al. Application of acoustic tomography and ultrasonic waves to estimate stiffness constants of muiracatiara Brazilian wood
Chiu et al. Application of Nondestructive Methods to Evaluate Mechanical Properties of 32-Year-Old Taiwan Incense Cedar (Calocedrus formosana) Wood.
Karlinasari et al. Non-destructive ultrasonic testing method for determining bending strength properties of Gmelina wood (Gmelina arborea)
Ma et al. Wooden beam damage evaluation under bending loading based on the integration of acoustic emission and principal component analysis
Yin et al. Mechanical properties assessment of Cunninghamia lanceolata plantation wood with three acoustic-based nondestructive methods
Güntekin et al. Prediction of bending properties for some softwood species grown in Turkey using ultrasound
Ross et al. Comparison of several nondestructive evaluation techniques for assessing stiffness and MOE of small-diameter logs
Sales et al. Evaluation of the mechanical properties of Brazilian lumber (Goupia glabra) by nondestructive techniques
Sharma et al. Properties evaluation and defects detection in timbers by ultrasonic non-destructive technique
Güntekin et al. Prediction of Compression Properties in Three Orthotropic Directions for Some Important Turkish Wood Species Using Ultrasound.
Martins et al. Non-destructive methodologies for assessment of the mechanical properties of new utility poles
Leite et al. Estimation of the dynamic elastic properties of wood from Copaifera langsdorffii Desf using resonance analysis
Görgün et al. Strength grading of turkish black pine structural timber by visual evaluation and nondestructive testing
Roohnia et al. Dynamic methods to evaluate the shear modulus of wood
Hasegawa et al. Acoustoelastic effect in Melia azedarach for nondestructive stress measurement
Wehr Wang et al.

Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued